There is no single sunscreen regulator
The question people ask is who regulates sunscreen, and it does not have a single answer. The accurate answer is that several bodies each regulate a different aspect of the same product, applying different tests, with different powers and different outcomes.
That is not disorder. It follows from the fact that a pack is simultaneously a product with safety obligations, a set of claims, an advertisement and, where environmental wording is used, a consumer protection matter. Each of those is somebody's job.
For a business the practical consequence is that compliance in one direction does not settle the others. For a reader, it means a complaint about a pack goes to different places depending on what the complaint is about.
| Body | What it looks at | Its test |
|---|---|---|
| Office for Product Safety and Standards | The product and the cosmetics regime | Compliance with the regulation and enforcement regulations |
| Local authority Trading Standards | The product locally, and consumer protection | The same regime, enforced with local powers |
| Advertising Standards Authority | Marketing communications | Misleadingness on overall impression, and substantiation |
| Competition and Markets Authority | Consumer protection, environmental claims | Consumer protection law and the Green Claims Code |
| MHRA | Classification at the boundary | Whether presentation makes it a medicinal product |
Framework of this publication. It describes how published rules and guidance fit together and is not a measurement, a survey or a study.
The Office for Product Safety and Standards
OPSS is the national market surveillance authority for a range of product regimes including cosmetics. Its interest is the product and its compliance with the cosmetics regime: safety, the product information file, notification, ingredient compliance including the ultraviolet filter list, and labelling requirements.
It publishes guidance for business on cosmetic products and operates at national level, working alongside local enforcement rather than replacing it.
Local authority Trading Standards
Trading Standards services enforce the Cosmetic Products Enforcement Regulations 2013 locally, and they enforce consumer protection law generally. They are the bodies with the practical powers to inspect, to require information and to take action against a business operating in their area.
Their remit is broad, which is both a strength and a limitation. A Trading Standards service covers everything from weights and measures to product safety across every category sold in its area, and sun protection labelling competes for attention with everything else.
The Advertising Standards Authority
The ASA administers the advertising codes written by the Committee of Advertising Practice and adjudicates complaints about marketing communications. Its test is whether a communication is misleading, whether objective claims are substantiated, and whether the impression created as a whole is accurate.
Two features make it the most visible of the four in practice. It takes complaints from the public and from competitors, and it publishes its rulings, which creates a body of applied interpretation that anyone can read. For sun protection copywriting, published rulings are more useful than the code text alone.
Its sanctions are principally the publication of an adverse ruling and the requirement to withdraw or amend, with referral available where a business does not comply. In a category where reputation matters, that is not a light sanction.
The Competition and Markets Authority
The CMA enforces consumer protection law and has direct enforcement powers under the Digital Markets, Competition and Consumers Act 2024, brought into force in stages. Its Green Claims Code sets out how consumer protection law applies to environmental claims, which is the route by which wording such as reef safe becomes its business.
The significance of direct enforcement powers is that the CMA can act without needing to go to court first, which changes the practical exposure for a business making environmental claims across a range.
The MHRA
The MHRA is not a cosmetics regulator. Its relevance is at the boundary: where a product's presentation raises the question whether it is a medicinal product, the determination sits with the MHRA, which publishes guidance and operates a borderline process.
For sun protection products this arises through claims rather than through composition, and it is one more reason that wording about disease prevention is treated as a different order of claim from wording about protection.
How a complaint actually travels
A member of the public who thinks a sun protection advertisement is misleading complains to the ASA, which is the accessible route and the one that produces a published outcome.
A concern about product safety, about ingredients or about mandatory labelling goes to Trading Standards or to OPSS, and is less visible, because enforcement action in the cosmetics regime is not routinely published in the way advertising rulings are.
A concern about an environmental claim can go to the CMA or to Trading Standards, and may also be an advertising matter if it appears in a marketing communication.
That asymmetry in visibility has a consequence worth naming. The advertising regulator generates a public record, so it looks like the principal enforcer of sun protection claims. The product regime generates less public record, which does not mean it is doing less.
The powers behind the routes
Enforcement bodies differ not only in what they examine but in what they can do, and it is worth being specific because the differences shape behaviour.
Under the cosmetics enforcement regulations the authorities have inspection and investigatory powers, can require the production of documents including the product information file, and can take action in relation to non-compliant products, up to withdrawal from the market where safety is engaged. The regime creates offences, so the ultimate route is a criminal one.
The advertising regulator works differently. It has no statutory powers of its own in the non-broadcast sphere. What it has is a published adjudication, an expectation of compliance, a set of practical sanctions within the advertising industry, and the ability to refer persistent non-compliance onwards. In a consumer category, a published adverse ruling is an effective sanction because it is quotable and permanent.
The competition authority's consumer protection powers changed materially with the Digital Markets, Competition and Consumers Act 2024, which provides for direct enforcement rather than requiring court proceedings in the first instance. For a business making environmental claims across a portfolio, that shifts the calculation considerably.
What this means for a business
Compliance has to be planned across the routes rather than against one of them. A claim can be supportable under the cosmetics claims criteria and still fail the impression test in advertising. Packaging can be compliant while a retail listing written by somebody else is not. An environmental claim can satisfy an internal standard and still fall short of the Green Claims Code.
The practical discipline is to hold one claim register per product covering every claim in every channel, with the supporting evidence identified against each, and to review the whole set rather than the pack alone.
What this means for a reader
That there is somewhere to go. Published advertising rulings are readable and searchable, and they are the most accessible window into how the rules are applied. The absence of a ruling about a particular product means nothing at all, since most of what is on shelves has never been the subject of a complaint.
Where a reader can see any of this
Transparency differs sharply between the routes, and it shapes what the public can learn.
Advertising rulings are published, searchable and written in plain terms, setting out the complaint, the advertiser's response, the assessment and the outcome. For anybody wanting to understand how sun protection claims are actually judged, they are the single best available resource, and they are free.
Cosmetics enforcement is far less visible. Action under the enforcement regulations does not generate a routine public record in the same way, and a product withdrawn or reformulated after an intervention usually disappears quietly. Product safety alerts are published where safety is engaged, which is a narrower category than compliance.
Consumer protection enforcement sits between the two, with the competition authority publishing case pages and outcomes for the matters it takes up.
The consequence is a distorted public impression. The most visible enforcement is over advertising, so advertising looks like where the rules live. In fact the substantive obligations sit in the product regime, and most of what happens there is invisible from outside.
What to take from this
Four routes: OPSS and Trading Standards for the product and its labelling, the ASA for advertising, the CMA for environmental and consumer protection matters, and the MHRA at the classification boundary. Different tests, different powers, different visibility.